Preheat oven to 350 degrees F (175 degrees C). Grease and flour two 8 or 9 inch round cake pans. Sift all-purpose flour, salt, baking soda, and cocoa together. Whip mayonnaise, white sugar, cold water, and vanilla together until mixed thoroughly. Add flour mixture slowly and beat at medium speed of an electric mixer for 2 minutes.
Ingredients. 1 1 cup mayonnaise. 2 1 cup white sugar. 3 ¾ cup water. 4 2 cups all-purpose flour. 5 1 ½ teaspoons baking soda. 6 4 tablespoons unsweetened cocoa powder. 7 ½ teaspoon salt. 8 2 teaspoons vanilla extract Add all ingredients to shopping list.
Whisk together flour, baking soda, baking powder, salt, sugar and cocoa powder in a medium bowl. In another bowl, mix together the mayonnaise, water and vanilla extract. We like to use a hand mixer for this recipe. Gradually add the flour mixture into the wet ingredients, mixing each additional as you add it. Scrape the sides of the bowl as needed.
Your cake does not need to be stored in the refrigerator and can be stored at room temperature for up to 7 days. You can freeze the cake too! You can also freeze your mayonnaise cake for up to 3 months. Old fashioned mayonnaise cake is moist and tender with no added oil or eggs.